chk_host
if (chk_host(dp, saddr, &defset, &hostset))
int chk_host(struct dirlist *, in_addr_t, int *, int *);
if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) ||
chk_host(dp, saddr, &defset, &hostset)) ||